20431584

素因数分解:

$2^5\times 3^2\times {\mathrm{61}}^1\times {\mathrm{1163}}^1$

素因数の和:1240

約数の個数: 72

約数和(自身を含む): 59105592

約数和(自身を除く): 38674008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 61, 72, 96, 122, 144, 183, 244, 288, 366, 488, 549, 732, 976, 1098, 1163, 1464, 1952, 2196, 2326, 2928, 3489, 4392, 4652, 5856, 6978, 8784, 9304, 10467, 13956, 17568, 18608, 20934, 27912, 37216, 41868, 55824, 70943, 83736, 111648, 141886, 167472, 212829, 283772, 334944, 425658, 567544, 638487, 851316, 1135088, 1276974, 1702632, 2270176, 2553948, 3405264, 5107896, 6810528, 10215792, 20431584]

約数ペア:

[(1, 20431584), (2, 10215792), (3, 6810528), (4, 5107896), (6, 3405264), (8, 2553948), (9, 2270176), (12, 1702632), (16, 1276974), (18, 1135088), (24, 851316), (32, 638487), (36, 567544), (48, 425658), (61, 334944), (72, 283772), (96, 212829), (122, 167472), (144, 141886), (183, 111648), (244, 83736), (288, 70943), (366, 55824), (488, 41868), (549, 37216), (732, 27912), (976, 20934), (1098, 18608), (1163, 17568), (1464, 13956), (1952, 10467), (2196, 9304), (2326, 8784), (2928, 6978), (3489, 5856), (4392, 4652)]